package com.ruoyi.common.security.feign;

import com.ruoyi.common.core.constant.SecurityConstants;
import com.ruoyi.common.core.utils.ServletUtils;
import com.ruoyi.common.core.utils.StringUtils;
import com.ruoyi.common.core.utils.ip.IpUtils;
import feign.RequestInterceptor;
import feign.RequestTemplate;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import org.springframework.stereotype.Component;

/**
 * feign 请求拦截器
 *
 * @author ruoyi
 */
@Component
public class FeignRequestInterceptor implements RequestInterceptor {
  @Override
  public void apply(RequestTemplate requestTemplate) {
    HttpServletRequest httpServletRequest = ServletUtils.getRequest();
    if (StringUtils.isNotNull(httpServletRequest)) {
      Map<String, String> headers = ServletUtils.getHeaders(httpServletRequest);
      // 传递用户信息请求头，防止丢失
      String userId = headers.get(SecurityConstants.DETAILS_USER_ID);
      if (StringUtils.isNotEmpty(userId)) {
        requestTemplate.header(SecurityConstants.DETAILS_USER_ID, userId);
      }
      String userName = headers.get(SecurityConstants.DETAILS_USERNAME);
      if (StringUtils.isNotEmpty(userName)) {
        requestTemplate.header(SecurityConstants.DETAILS_USERNAME, userName);
      }
      String authentication = headers.get(SecurityConstants.AUTHORIZATION_HEADER);
      if (StringUtils.isNotEmpty(authentication)) {
        requestTemplate.header(SecurityConstants.AUTHORIZATION_HEADER, authentication);
      }

      // 配置客户端IP
      requestTemplate.header("X-Forwarded-For", IpUtils.getIpAddr(ServletUtils.getRequest()));
    }
  }
}
